Update App.tsx

src/App.tsx

@@ -18,7 +18,7 @@ const App: FC = () => {
           <Navbar />
         </header>
         <Routes>
-          <Route path="/insu-learn//" element={<HomePage />} index />
+          <Route path="/insu-learn" element={<HomePage />} index />
           <Route path="/insu-learn/chapters" element={<Chapters />} />
           <Route path="/insu-learn/intro" element={<Intro />} />
           <Route path="/insu-learn/insulin" element={<Insulin />} />